Zigzag control device for sewing machines
US4052947A · kind A · utility
2Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B3/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A control device for a zigzag sewing machine is disclosed in which the width of zigzagging and the neutral position of needle vibration may be separately influenced and in which for any given maximum width of zigzag stitching the extreme left and right hand neutral positions of needle vibration can always be made to coincide with the left and right hand sides of that maximum width of zigzag stitching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.